Skyflow Data Privacy Vault by Skyflow is an API-based data privacy vault designed to integrate with any tech stack to enforce privacy policies across applications, data clouds, and large language models (LLMs). It isolates, protects, and governs sensitive data, ensuring compliance with various data privacy regulations. Skyflow Data Privacy Vault uses zero trust principles, allowing the creation of granular access policies that are continuously evaluated and monitored. It combines polymorphic encryption with vault technology to keep sensitive data centralized and secure. The vault supports fine-grained access control, tokenization, redaction, masking, and encrypted operations to preserve data privacy. Skyflow Data Privacy Vault complies with PCI, SOC 2, HIPAA, and is on track for HITRUST certification. It uses cryptographically signed JWTs for API authentication following the IETF OAuth2 JWT profile, and service accounts to represent machine identities for API clients, allowing customers to assign fine-grained policies to API clients. The vault also integrates with security information and event management (SIEM) systems for audit information.